Just like all RMC wahs, the RMC3 is designed and built by Geoffrey Teese and includes licensed fuzz-friendly technology (as of October 2006). The RMC3 has a fully adjustable, tuneable circuit that can be made to sound like any other wah, and other wah sounds that you can only imagine! The adjustable parameters are treble, bass, mids, intensity, gain, range of sweep, and location of resonant peak. The adjustments are all hand labeled on the circuit board. You have to pull off the bottom of the wah and use a small screwdriver to make the adjustments. The factory setting is a nice Clyde McCoy sound, I don't need any further adjustment! The manual has settings for SRV, Hendrix, Clapton, Santana, Colorsound, and Thomas organ sounds to give you some ideas.
The switch is wired for a TRUE BYPASS, so that when the wah is off, it does not affect your tone like most wahs. All RMC wahs have true bypass. 9V DC adaptor jack (Boss style) now standard, along with RFI filtering. Used by Trey in Phish, Slash, George Lynch, Page Hamilton, THE BLACK CROWES, Joe Holmes (Ozzy), Monster Magnet, and many other professionals.